Students are now familiar with all five types of chemical reactions. They are able to look at reactants and predict what the products will be, as well as identify the type of reaction. Today will act as an extension of the lecture on double replacement reactions. Solubility rules and predicting precipitate formation will be introduced and applied to some double replacement reactions. I will play a quick game with the students to help them link the chemical equations to visualizing what occurs in reactions. Last they will begin the Snowman Challenge which will serve as a fun review game incorporating all 5 reactions. The next time we meet we will have our unit exam.
Objectives
Students will…
Distinguish which ions in a double replacement reaction are spectator ions and which are actually taking part in the reaction
Predict the precipitates formed in double-replacement reactions using solubility rules
Identify the differences between the types of chemical reactions
Solve various chemical reactions given reactants (Snowman Challenge)
Materials
Solubility Rules Chart from textbook
Snowman Challenge Sheets (attached below)
Instruction
Opening (10 mins)
Hand in Chemical Reactions Lab Explanation and Questions
Do Now: Open textbook to pg. 227 and read the section titled Predicting the Formation of a Precipitate
Ask if there are any questions regarding the Adopt-a-Chem Rxn Project
Explain today's focus: learn about solubility rules and their application in double replacement reactions, review the 5 general reactions, snowman challenge
Middle (70 mins)
Activity 1: 15 mins
Lecture on solubility rules and formation of precipitate in double replacement rxns
Briefly introduce net ionic equations
Place Your Bets!
teacher has 2 solutions. asks students whether or not mixing them will form a precipitate. show of hands. teacher mixes solutions. class discusses the reaction and writes the balanced equation then the net ionic equation
Activity 2: 15 mins
Students will break into groups and create a summary for a different type of reaction. They will choose their own groups but I will assign the type of reaction each group summarizes.
After the groups are finished, each group will take turns to present their summary to the class.
Lesson #5: Reactions in Aqueous Solution
Summary
Students are now familiar with all five types of chemical reactions. They are able to look at reactants and predict what the products will be, as well as identify the type of reaction. Today will act as an extension of the lecture on double replacement reactions. Solubility rules and predicting precipitate formation will be introduced and applied to some double replacement reactions. I will play a quick game with the students to help them link the chemical equations to visualizing what occurs in reactions. Last they will begin the Snowman Challenge which will serve as a fun review game incorporating all 5 reactions. The next time we meet we will have our unit exam.Objectives
Students will…
Distinguish which ions in a double replacement reaction are spectator ions and which are actually taking part in the reactionPredict the precipitates formed in double-replacement reactions using solubility rules
Identify the differences between the types of chemical reactions
Solve various chemical reactions given reactants (Snowman Challenge)
Materials
Solubility Rules Chart from textbookSnowman Challenge Sheets (attached below)
Instruction
Opening (10 mins)
Middle (70 mins)
Activity 1: 15 mins- Lecture on solubility rules and formation of precipitate in double replacement rxns
- Briefly introduce net ionic equations
- Place Your Bets!
- teacher has 2 solutions. asks students whether or not mixing them will form a precipitate. show of hands. teacher mixes solutions. class discusses the reaction and writes the balanced equation then the net ionic equation
Activity 2: 15 mins- Students will break into groups and create a summary for a different type of reaction. They will choose their own groups but I will assign the type of reaction each group summarizes.
- After the groups are finished, each group will take turns to present their summary to the class.
Activity 3: 40 minsClosing (10 mins)
- Hand out Summary Sheet (attached below)
- Have students summarize double replacement reactions and net ionic equations
- Homework: Finish writing up Chemical Reactions Lab Explanation, study!
- Remind students to continue working on Adopt-a-Chem Rxn Project
- Unit Test next time we meet!
attach summary sheet (taken from my CT)Notes
Unit Homepage